Subarachnoid Hemorrhage Without Detectable Aneurysm
Stroke 24:1403-1409, Rinkel,G.J.E.,et al, 1993
Current Role of Cerebral Angiography in the Diagnosis of Cerebrovascular Diseases
AJR 159:191-197, Wolpert,S.M.&Caplan,L.R., 1992
The Value of Cerebral Angiography in Predicting Cerebral Ischemia During Carotid Endarterectomy
AJR 159:1057-1061, Schwartz,R.D., 1992